The invention discloses a wing end trapped vortex high lift device, and belongs to the field of wing design. The wing end trapped vortex high lift device comprises a device upper surface, a device lower surface, a front edge surface and an airfoil profile which are used as side surfaces. The device upper surface extends to the wing upper airfoil, and the lower surface extends to the wing lower airfoil; the device upper surface is longer than the device lower surface; a semi-closed cavity is formed in a space between the device upper surface and the device lower surface and is used for forminga wing end trapped vortex during flight; the rotation direction of the wing end trapped vortex is opposite to that of the wingtip vortex; the wing end trapped vortex high lift device generates wing end trapped vortexes and is used for preventing airflow on the lower wing surface of the wing from flowing to the upper wing surface so that the trend of upward reversing of the airflow on the lower wing surface of the wing can be inhibited under the condition of not depending on physical obstruction, the lift force of the three-dimensional wing is effectively increased, and the induced resistance is reduced.

    本申请公开了一种翼端驻涡增升装置,属于机翼设计领域。该翼端驻涡增升装置包括:装置上表面、装置下表面、前缘面和翼型剖面作为侧面。装置上表面延伸于机翼上翼面,下表面延伸于机翼下翼面;装置上表面的展长大于下表面的展长;装置上表面与下表面中间的空间形成半封闭式空腔,用于飞行时形成翼端驻涡;翼端驻涡旋转方向与翼尖涡相反;翼端驻涡增升装置产生翼端驻涡,用以阻止机翼下翼面气流流向上翼面,从而在不依赖物理阻隔的条件下,可抑制机翼下翼面气流上反的趋势,有效地增加了三维机翼的升力,减小了诱导阻力。


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    Titel :

    Wing end trapped vortex high lift device


    Weitere Titelangaben:

    一种翼端驻涡增升装置


    Beteiligte:
    ZHU SHANGXIANG (Autor:in)

    Erscheinungsdatum :

    2021-02-09


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B64C AEROPLANES , Flugzeuge




    Vortex-lift prediction for complex wing planforms.

    BRADLEY, R. G. / SMITH, C. W. / BHATELEY, I. C. | AIAA | 1973



    Lift-induced wing-tip vortex attenuation

    PATTERSON, JR., J. | AIAA | 1974


    Lift-induced wing-tip vortex attenuation

    Patterson, J. C., Jr. | NTRS | 1974